github.com/hanks177/podman/v4@v4.1.3-0.20220613032544-16d90015bc83/pkg/api/handlers/compat/containers_prune.go (about)

     1  package compat
     2  
     3  import (
     4  	"bytes"
     5  	"net/http"
     6  
     7  	"github.com/hanks177/podman/v4/libpod"
     8  	"github.com/hanks177/podman/v4/pkg/api/handlers"
     9  	"github.com/hanks177/podman/v4/pkg/api/handlers/utils"
    10  	api "github.com/hanks177/podman/v4/pkg/api/types"
    11  	"github.com/hanks177/podman/v4/pkg/domain/entities/reports"
    12  	"github.com/hanks177/podman/v4/pkg/domain/filters"
    13  	"github.com/hanks177/podman/v4/pkg/util"
    14  	"github.com/pkg/errors"
    15  )
    16  
    17  func PruneContainers(w http.ResponseWriter, r *http.Request) {
    18  	runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
    19  	filtersMap, err := util.PrepareFilters(r)
    20  	if err != nil {
    21  		utils.Error(w, http.StatusInternalServerError, errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String()))
    22  		return
    23  	}
    24  
    25  	filterFuncs := make([]libpod.ContainerFilter, 0, len(*filtersMap))
    26  	for k, v := range *filtersMap {
    27  		generatedFunc, err := filters.GeneratePruneContainerFilterFuncs(k, v, runtime)
    28  		if err != nil {
    29  			utils.InternalServerError(w, err)
    30  			return
    31  		}
    32  		filterFuncs = append(filterFuncs, generatedFunc)
    33  	}
    34  
    35  	report, err := PruneContainersHelper(r, filterFuncs)
    36  	if err != nil {
    37  		utils.InternalServerError(w, err)
    38  		return
    39  	}
    40  
    41  	// Libpod response differs
    42  	if utils.IsLibpodRequest(r) {
    43  		utils.WriteResponse(w, http.StatusOK, report)
    44  		return
    45  	}
    46  
    47  	var payload handlers.ContainersPruneReport
    48  	var errorMsg bytes.Buffer
    49  	for _, pr := range report {
    50  		if pr.Err != nil {
    51  			// Docker stops on first error vs. libpod which keeps going. Given API constraints, concatenate all errors
    52  			// and return that string.
    53  			errorMsg.WriteString(pr.Err.Error())
    54  			errorMsg.WriteString("; ")
    55  			continue
    56  		}
    57  		payload.ContainersDeleted = append(payload.ContainersDeleted, pr.Id)
    58  		payload.SpaceReclaimed += pr.Size
    59  	}
    60  	if errorMsg.Len() > 0 {
    61  		utils.InternalServerError(w, errors.New(errorMsg.String()))
    62  		return
    63  	}
    64  
    65  	utils.WriteResponse(w, http.StatusOK, payload)
    66  }
    67  
    68  func PruneContainersHelper(r *http.Request, filterFuncs []libpod.ContainerFilter) ([]*reports.PruneReport, error) {
    69  	runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
    70  
    71  	report, err := runtime.PruneContainers(filterFuncs)
    72  	if err != nil {
    73  		return nil, err
    74  	}
    75  	return report, nil
    76  }